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Possible evidence for Late Cretaceous off-axis volcanism in the outer James Ross Basin
Published online by Cambridge University Press: 06 May 2004
Abstract
A prominent volcaniclastic channel sandstone deposited by a landward-flowing sediment gravity flow is described from the Maastrichtian of Snow Hill Island in the northern Larsen Basin. The characteristics of this petrographically distinct event deposit appear to indicate a volcanic source to the east of Snow Hill Island, well away from the magmatic arc landmass which sourced the bulk of the Larsen Basin fill, suggesting minor off-axis intrabasinal volcanism in Maastrichtian to Paleogene times.
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- Papers—Earth Sciences and Glaciology
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- © Antarctic Science Ltd 1999
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